Any person or thing that diffuses. / A device designed to diffuse a scent efficiently. / (optics) Any device that or spreads out or scatters light, making the light appear softer.

In a diffusive manner / With regard to diffusion

plural of diffusivity

(physics, of a gas or other fluid) A measure of the speed of diffusion. / (figuratively, e.g. of a disease) Capacity for spreading.

plural of diffusibility

diffusibility

Able to be diffused

A substance that diffuses through something.

The act of diffusing or dispersing something, or the property of being diffused or dispersed; dispersion.

plural of diffusion